Sunday, 8 November 2009

Planes: The Machine that has Impressed me the most !!



Most people love the thrill of driving fast, sleek and powerful cars. I on the other hand,am a step ahead! I choose Planes.

I guess its the power of these marvelous machines,the speeds at which they can travel and the amazing manoeuvres they do that impresses me the most.


It is indeed true that the best job one can ever get is to be a Fighter Pilot. A lot of pilots wake up way too early in the morning, scramble up their fighter jets and push the throttles and raise thousands of feet above the ground only to see the Sun rise. Believe me, to see the Sun rise from the Cockpit of a Fighter Aircraft at 35,000 feet above the earth is a wonderful Experience.More than anything else the sensation is one of perfect peace mingled with an excitement that strains every nerve to the utmost. And this very moment that they enjoy is one of the reasons that makes me envy them. I wish i could have an experience as such one day.


We humans are basically content with a two-dimensional world, which is what we’ve always occupied. We travel mostly on the ground, have traffic jams, parking problems,and we’d do a lot better to look up a little bit because there is that great aerial highway that’s always ready to go, you don’t have to pave it and the benefits are very great. And that is when Aviation started.

WHAT IS IT THAT ALLOWS A PLANE TO FLY ???

Here is an interesting fact. A new plane developed by Airbus called A 380 is around 560 tons in weight and can carry 64,500 kilograms of payload. You have probably seen a lot of large aircrafts before. But, have you really asked yourself the exact question??? What makes these heavy metal birds climb thousands and thousands of feet into the air?

Is it just the massive engines or the large wingspan?



Most people understand that it is the wings that allow the plane to fly and the engines allow it to move forward. This is ofcourse a good knowledge for an average enthusiast.
But its just not that..there is more.


There are 4 forces acting on an airplane. They are:
1. Lift
2. Thrust
3. Weight
4. Drag




Lets start with the Lift and work our way from there. The wing itself does not generate Lift,but its the shape of the wing. The Wing is shaped like an Airfoil. In forward flight, the wind moving above the wing,called as Relative wind,moves faster than the wind flowing below the wing. Airfoil structure forces the wind to move faster over the wings. Slow moving air below the wing is forced to put more pressure on the wings than the air flowing above it. This in turn creates Lift. This is the Bernoulli's Principle.

So the wings create Lift while the engines produce Thrust. These 2 forces help the plane to fly. In common language, to say; When the weight of the airplane is as little as that of a feather,only then you can go flying.

Now, lets look at the other side of that, counteracting to Lift and Thrust.

Material used to build the plane along with Fuel, Baggage and Passenger Weight all add upp to form the Gross Weight of the plane. This along with Gravity all act as Weight.

Condition to Fly: 1. Lift >= Weight

Drag is the opposite of Thrust. Drag is created simply by the existence of the aircraft. It is the object's natural desire to resist moving through a fluid such as Air.

Condition to Fly: 2. Thrust>= Drag


Now lets try to Fly an Airplane.

While the Plane is still taxiing on the runway,it is moving at a very slow speed.Hence, its Lift is still less than the Weight of the Aircraft.
























As the plane is accelerated, Thrust is now very large compared to Drag(Condition 2 Satisfied)and the Lift starts to increase gradually. But as the Speed increases, Lift is greater than the Weight(Condition 1 satisfied).



Now that the both conditions required to fly are satisfied,the giant beast is pushed into the air. As long as both the conditions are satisfied, the Plane continues its safe flight to the destination.

Well, now that you know the Physics behind how a Plane can fly, the next time you sit in one, you better be thinking how along with the anxiety that the plane might Crash !!!









Now,anybody who is interested in Planes can explain the Dynamics of Flight, but what Flying can really do to the spirit of a Man is way beyond description.

Can the magic of Flying be ever carried by words??? I don't think so.

22 comments:

  1. Hi Deepak, great post :) keep updating and in the meantime we will be able to gain knowledge from ur blog :) nice pictures and good writing..lookin forward to more interestin facts about planes..way to go mr.pf :) and ur blog says deepak the plane fanatic :) :) yippee, my given name is in the url now

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  3. good one buddy!! its very informative!! nice pictures and some basic techniques of drag, pull etc which aids plane in flying is well explained!!

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  4. dynamics of the flight neatly explained.sitting on the cockpit and getting the bird's eye view of everything below is sure an exhilarating experience ,count me as well in the league of folks who envy pilots.
    goodluck wid ur blog :)

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  5. @ Sindhu : Well, this is just the beginning :D I obviously will keep on updating it; For you ppl to know what Aviation and Flying is all about.

    And i do like my nickname a LOT !! and it does define my obsession with Planes.

    @ Jayanthi,Navya : Thanks a lot.Of course, Flying is SOMETHING !!

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  6. Way to go buddy :)
    As you know explaining complex topic in a simple way is always challenging.Hope you will succeed in it.USP of the blog is tht it take u thro' the basics first which is v.essential for a novice.Waiting for many more such blogs 2 come.All the best.

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  7. Heyyy, ur first post has come out very well.. Good luck for your next one..

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  9. Deepu.......

    Wonderful writing kano.. keep up the good work! Learnt a lot from this blog :-).. complexities.. ergonomics are explained well!

    Looking fwd for updates!


    -Shruthi

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  10. @ Vinay: Ya,explaining the dynamics of flight was the one which took time to write !!

    @ Nikhil,Mallika,Vishnu,Anand : Thank u very much.

    @ Shruthi: Thank u, i'll keep on updating :)

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  11. yeah wht 2 say abt this blog ..... i hav heard a lot more than whtz written in this blog ....

    my bro is a planes freak ... i know tht ....

    n yeah the blog is vry gud bro .....

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  12. Hey there deepak... nice one for sure mite....
    looking forward for more stuff.....

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  13. hi deepak.....
    Hey its really informative and enriched my knowledge. ofcourse i can explain others now:)
    keep updating ur blog.good pictures.

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  14. @ Vicky: Thats true lo....
    @ Ranjan: Thanks
    @ Shruthi A: Thanks.Ya,do explain to others too!

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  15. nice work ,that gave me a lot gyan about planes

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  16. @ Sandesh: Thanks lo.. glad u got info about planes :D

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  17. Very interesting deepak:) its very informative…Finally i read it today!! If i get dat JET note ill get u for sure:)huff i never knew ur dat crazy!! u find planes in notes!! Dats amazing :)!!

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  18. @ Shruthi: ya, i'm too involved with planes :) i find it everywhere..thanks a lot :)

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